Is RealTek AC97 audio 16-bit sound blaster compatible?

Or, does anyone know how to find out the answer to this. I want to know for gamnig purposes. I'm trying to install Agatha Christie's And Then There Were None, and it gets to about 80% installed and then stops. Looking at the requirements, this is the only thing I can think of that might be a problem. Any advice? Thx.